Magneto.



P. BECK. MAGNETO.

APPLICATION FILED 111111124, 1912. RENEWED JULY 26, 1913.

Patented Sept. 9,1913.

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lull" DZDOEO Ilu U262. 20 moan Xviim WITNESSES W "\m. "5 ud- P. BECK.

MAGNETO.

APPLICATION FILED JUNE 24, 1912. RENEWED JULY 26, 1913.

1,073,020. 7 Patented Sept. 9, 1913.

3 SHEETS-SHEET 2.

PERRY BECK INVENTOR P. BECK.

MAGNETO.

APPLIOATIOH FILED JUNE 24, 1912. nlmwnn JULY 26, 1913. 11,073,020.

Patented Sept. 9, 1913.

3 SHEETS-SHEET 3.

INVENTOR PERRY 550K WITNESSES W "M 6 man? 31:01:, or ALIEXANDRIL-INDIANA. s

'electro-motive force M,

- Specification of Letters jatent.

Patented Sept. 9, 1 9.13,

Application filed June 24, 1912, lerial No. 705,627. Renewed July 26, 1913f Scrial No. 781,450.

To all whom it may concern Be it known that I, ERR Been, a citizen of the United States, residing at A exandria, inhe county of Madison and State of Indiane, have invented certain new and useful Im rovcm'ents in Ma notes, of which the fol owin is a speci cation, reference being had t erein to he acco pany ng drawing.

This invention relates to electromagnetic devices such as a e used in conne tion w th internal com ustion engines and has sp cial refere e to a novel form of magn to ad pted f r use in connecti n ith such engines- The principal object of t e in ention is to improve an sim ify the general on ru i f devices 0 his cha ac er- A second bje t of the inventi is t pr vide a novel form o me .etc fo use in c nnection with devices 0 this ha c r- A third object of the invention is to rovide n vel means wh r y th p ak 0. t e

V m be shifted so that the maximum E, M. 1. is obtained at the instant of the passage of the spark. In other words the object 1s to syn-. chronize the magneto production of E. M. F. with a im r- A fourth object of the invention is to provide an improved form of timer for use in connection with such an invention.

With the above and other objects in view, the invention consists in general of certain novel constructions, combinations and arrangements of arts, as will be hereinafter fully described, illustrated in the accompanying drawings, and specifically claimed.

In the accompanying drawings, like characters of reference ind cate like parts in the several views, and: Figure 1 is a horizontal section through an engine casing showing the different elements of the device, the fig- .ure being partly diagrammatic. Fig. 2 is "a section transverse of Fig. 1, and showing the magneto, certain of the parts belng broken away to more clearly show the construction of such magneto. Fig. '3 s an enlarged sectional view on the line 33, Fig.

1. Fig. 4 is an enlarged sectional View on the line 4-4, Fig. l. Fig. 5 is a diagrammatic view showing the wiring connections of the device. The frame of the engine is indicated at 10 and journaled in this frame is a .crank shaft 11 which projects through suitablebearing .12, o f th b ring l ein on nued utw rd y f m the a s orm a bos 13- On is bo 3 is d a hub 1 f a platelfi'ha ing a Series of inductor coils 16 arranged around the plate 1 Fixed upon the shaft 11 is a hub 18 of a fly; wheel whose outer ort-ion or rim is 0 set as at 19, and secured to this fly wheel is a series of V-shaped ermanent magnets 20, the apices of the Vs going inwardly disposed and secured by bolts 21 while between the adjacent arms of the ma nets there passes a bolt 22 which holds the outer ends of the magnets to the fly wheel, these ends being held in spaced relation to said fly wheel by collars 23. As will be noted from an inspection of the diagrammatic figure the magnets are arran ed so that similar poles are adjacent eaci other, By reason of this arrangement the rotation of the fly wheel will set up a flow of current in the several inductor 'coils and by reason of the alternate winding of these inductor coils the current will flow in one direction throughoi t the entire winding of the inductor coils when the circuit is closed and the north pole ofa permanent magnet passes one ofthe inductor coils and in the opposite direction when the south pole of the permanent magnet passes the same inductor coils. Now as there is a series of these induct-or coils a number of rapid oscillations of relatively high voltage will be set up. Fixedly secured to the plate 15 by an insulating block is an arcuate contact strip 24 whcrc'to one ,end of the wire 17 is secured. Carried on the frame of the engine is an extension 25 wherein is secured a block of insulation 26 having a recess 27 therein and in this recess is movably mounted a contact member or brush 2-8 which is held pressed against the arcuate strip 24 by a spring 29. On the bloclr26 is also mounted a binding post 30 which is in electrical contact with the brush 28 through the medium of the spring 29.

, out-er en *thermoresurrounded by an insulating casing 34 and through the.hollow shaft and easing extends a rod 35 which passes through a suitable slot 36 formed in the late 15 and which carries an arm 37 proecting over the face of said plate as can best be seen by reference to Fig. 2. Connecting the late and arm isa link 38 so that by rotatlng the casing 34 the arm 37 will be moved and this will rotate the plate 15 through the arc of a circle or vice versa thus shifting the points at which the permanent magnets pass the coils, it being noted that the casing 34 is fixed upon the rod 35. On, the crank shaft 11 is fixed a gear 39 which meshes with a gear 40 of twice the diameter of the gear 39 fixed on the shaft 32. Furthermore, this shaft 32 is provided with a number of cams 41 suitably fixed thereon for the purpose of operating the valves of the engine. In the device here shown the arrangement is made for a two-cylinder engine but it will be obvious from what follows that slight modifications can be used to i cover any number of cylinders desired.

Fixed by means of a'key upon the shaft 32 is a cam disk 42 having projecting tappets 43 (as many as there are cylinders 1n the enine). Pivotally mounted within the easing 34 is an arm 44 having downwardly projecting member 45 adjacent its outer end and a apted to be engaged by the tappets 43 as they rot-ate withthe shaft. The extremity of this arm 44 projects upwardly as at 46 and has an inturned lip 47. Mounted on the body of the arm is a leaf spring 48 carrying a contact point 49 which is arranged to contact with a platinum point 50, and as the disk 42 is rotated this platinum point 49 makes and breaks contact with the platinum point 50 which is carried by a bindin screw 51 extending through the casing 34. venl spaced about the casing 34 are certain bin ing posts 52 (as many as there are cylinders to engine) each whereof is connected by a suitable wire 53 with a respective spark plug 54. The insulating drum 33 is provided with a radial slot 54 wherein is fixed a metallic. contact 55 so that as the drum 33 rotated electrical contact will be made successively with the inner ends of the binding posts 52, the latter being flush with the inside of the casing 34., This strip 55 extends nearly the entire width of the drum and at one end engages an annular contact strip 57 whereto is connected a binding post 58.

Now, it will be observed, that in order to advance or retard the spark it is merely necessary to rotate the casing 34. This action .movesthe binding ports with their contacting inner ends forward or back as the case may be so that the contact takes place sooner or later in accordance with the direction of movement At the same time the rotation of the casing causes the rotation of the rod 35 and this in turn shifts the plate 15 so that the magnets will be at the proper point to give the maximum E. M. F. justas the spark passes, or this operation may be accomplished by rotating the plate 15.

In order to increase the efliciency of the apparatus the binding post 30 is connected by a wire 59 with one pole of a switch 60 which is in turn connected by a wire 61 with the primary 62 and secondary 63 of an induction coil 64. The other end of the primary of this induction coil is connected by a wire 65 with the binding post 51. A branch leads from this wire 65 as indicated at 66 and extends to a condenser 67. The

secondary of the induction coil 64 is con-' nected by a wire 68 with the ring 57 so that as the member 55 passes around current will be conveyed thereto from this secondary.

In the diagrammatic view the various parts which are grounded in the frame work of the machine are indicated by a ground wire 69 and it will be noted that the condenser 67 is also grounded by a wire 70. From an inspection of this diagram the various circuits may be readily traced.

Having thus described the invention, what 3 is claimed as new, is

1. In a device of the kind described, a rotatable plate, a series of armature coils connected each to each and supported on said plate, an arcuate contact member car ried by said plate, a brush engaging said member, a connection between said armature coils and said arcuate contact, a timer including a rotatable contact member, a casing, contacts carried on said casing, said casing being rotatable to move said contacts, a wheel, a shaft supporting said wheel, permanent magnets carried on said wheel and passing over said armature coils, a hollow shaft passing into said casing and carrying a rotatable contact member, a rod secured to said casing and. passin through said hollow shaft, said plate having a slot wherethrough said rod passes, an arm fixed upon said rod and extending over the' face of said plate, a link connecting said arm and plate, and an operative connection between the hollow shaft and the shaft supporting the wheel.

2. In a device of the kind described, a rotatable plate, a series of armature coils connected each to each and supported on said plate, an arcuate contact member carried by said plate, a brush engaging said member, a connection between said armature coils and said arcuate contact, a timer including a rotatable contact member, a casing, contacts carried on said casing, said casing being rotatable to move said contacts, a Wheel, a shaft supporting said Wheel, permanent magnets carried on said Wheel and passing over said armature coils, a hollow shaft passing into said casing and carrying a rotatable contact member, a rod secured to said casing and passin through said hollow shaft, said plate havlng a slot Wherethrough said rod passes, an arm fixed upon said rod and extending over the face of said plate, a link connecting said arm and plate, and anoperative connection between the hollow shaft and the shaft supporting the wheel, a second contact device 1n said casing, and a cam carried on the hollow shaft for actuating said second contact device.

In testimony whereof I hereunto aflix my signature in presence of two Witnesses.

' I PERRY BECK.

Witnesses:

BRAXTON BECK, JOHN PLACKARD. 

